Controlled Exertion of Force by Developmentally Delayed Young Men and Women

Abstract

Present purposes were to examine the characteristics of controlled force exertion in 28 developmentally delayed young people (14 men, 14 women), and sex differences compared to 28 normal young students (14 men, 14 women). The subjects matched their submaximal grip strength to changing demand values displayed in a bar chart on the display of a personal computer. The total sum of the differences between the demand value and grip exertion value for 25 sec. was used as an evaluation parameter for the test. The controlled force exertion was significantly poorer for the developmentally delayed group than for controls, and there were large individual differences. The developmentally delayed men scored poorer than women in coordination. Like the controls, the means between trials did not decrease significantly. For these developmentally delayed subjects, performance did not improve after only a few trials. The controlled force-exertion test is useful as a voluntary movement-function test for developmentally delayed subjects.

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References

Demura

, & Nagasawa

(1994a) [The development of test for estimating the co-ordination ability of strength exertion: the examination of scale, description forms on display of personal computer, test time, and estimation time]. [Japan Journal of Physical Education], 38, 349–360. [in Japanese]

Demura

, & Nagasawa

(1994b) [The development of test for estimating the co-ordination ability of strength exertion: the examination of statistical validity, reliability, and objectivity]. [Japan Journal of Physical Education], 39, 176–188. [in Japanese]

Dustman

R. E.

Ruhling

R. O.

Russell

E. M.

Shearer

D. E.

Bonekat

H. W.

Shigeoka

J. W.

Wood

J. S.

, & Bradford

D. C.

(1984) Aerobic exercise training and improved neuropsychological function of older individuals. Neurobiology of Aging, 5, 35–42.

Ferslew

K. H.

Manno

J. E.

Manno

B. R.

Vekovius

W. A.

Hubbard

J. M.

, & Bairnsfather

L. E.

(1982) Pursuit meter: II. A computer-based device for testing pursuit-tracking performance. Perceptual and Motor Skills, 54, 779–784.

Grafton

S. T.

Mazziotta

J. C.

Presty

Friston

K. J.

Frackowiak

R. S. J.

, & Phelps

M. E.

(1992) Functional anatomy of human procedural learning determined with regional cerebral blood flow and PET. The Journal of Neuroscience, 12, 2542–2548.

Halaney

M. E.

, & Carey

J. R.

(1989) Tracking ability of hemiparetic and healthy subjects. Physical Therapy, 69, 342–348.

Hayashi

(1967) [Human factors on manual control systems]. [Japan Journal of Ergonomics], 3, 265–274. [in Japanese]

Henatsch

H-D.

, & Langer

H. H.

(1985) Basic neurophysiology of motor skills in sport: a review. International Journal of Sports Medicine, 6, 2–14.

Horgan

J. S.

(1980) Pursuit rotor learning of mildly retarded children under supplementary feedback conditions. Perceptual and Motor Skills, 50, 1219–1228.

10.

Houx

P. J.

, & Jolles

(1993) Age-related decline of psychomotor speed: effects of age, brain health, sex, and education. Perceptual and Motor Skills, 76, 195–211.

11.

Kottke

F. J.

Halpern

Easton

J. K.

Ozel

A. T.

, & Burrill

C. A.

(1978) The training of coordination. Archives of Physical Medicine and Rehabilitation, 59, 567–572.

12.

Kunsman

G. W.

Manno

J. E.

Przekopand

M. A.

, & Manno

B. R.

(1991) Validation of two devices for evaluation of human psychomotor performance. Perceptual and Motor Skills, 73, 255–264.

13.

Meshizuka

, & Nagata

(1972) A method for measuring muscular group “control-ability” and its apparatus. Research Journal of Physical Education, 16, 319–325.

14.

Nagasawa

, & Demura

(2002) Development of an apparatus to estimate coordinated exertion of force. Perceptual and Motor Skills, 94, 995–1007.

15.

Nagasawa

Demura

, & Kitabayashi

(2004) Concurrent validity of tests to measure the coordinated exertion of force by computerized target pursuit. Perceptual and Motor Skills, 98, 551–560.

16.

Nagasawa

Demura

, & Nakada

(2003) Trial-to-trial and day-to-day reliability of a computerized target-pursuit system to measure the ability to coordinate exertion of force. Perceptual and Motor Skills, 96, 1071–1085.

17.

Nagasawa

Demura

Yamaji

Kobayashi

, & Matsuzawa

(2000) Ability to coordinate exertion of force by the dominant hand: comparisons among university students and 65- to 78-yr.-old men and women. Perceptual and Motor Skills, 90, 995–1007.

18.

Nakamura

Ono

, & Shibasaki

(1992) [Analysis and modeling for acceleration characteristics of manual tracking of visual target: on differences between cerebellar ataxia and Parkinson's disease]. [Japanese Journal of Medical Electronics and Biological Engineering], 30, 130–140. [in Japanese]

19.

Nakamura

Sugi

Shibasaki

, & Terada

(1993) [A method for analysing characteristics of manual tracking of visual target by using artificial neural network]. [Japanese Journal of Medical Electronics and Biological Engineering], 31, 245–253. [in Japanese]

20.

Oldfield

R. C.

(1971) The assessment and analysis of handedness: the Edinburgh inventory. Neuropsychologia, 9, 97–113.

21.

Ruff

R. M.

, & Parker

S. B.

(1993) Gender- and age-specific changes in motor speed and eye-hand coordination in adults: normative values for the Finger Tapping and Grooved Pegboard Tests. Perceptual and Motor Skills, 76, 1219–1230.

22.

Skelton

D. A.

Greig

C. A.

Davies

J. M.

, & Young

(1994) Strength, power and related functional ability of healthy people aged 65–89 years. Age and Ageing, 23, 371–377.

23.

Speller

Trollinger

J. A.

Maurer

P. A.

Nelson

C. E.

, & Bauer

D. F.

(1997) Comparison of the test-retest reliability of the Work Box using three administrative methods. American Journal of Occupational Therapy, 51, 516–522.

24.

Stelmach

G. E.

Goggin

N. L.

, & Garcia-Colera

(1987) Movement specification time with age. Experimental Aging Research, 13, 39–46.

25.

Walamies

, & Turjanmaa

(1993) Assessment of the reproducibility of strength and endurance handgrip parameters using a digital analyzer. European Journal of Applied Physiology and Occupational Physiology, 67, 83–86.

26.

Yamashita

, & Sameshima

(1985) [A study of tracking behavior in adults with cerebral palsy: on muscular contraction mechanism and motor perception]. [The Japanese Journal of Psychology], 56, 22–28. [in Japanese]

27.

York

J. L.

, & Biederman

(1990) Effects of age and sex on reciprocal tapping performance. Perceptual and Motor Skills, 71, 675–684.